.k_about_top { width: 1280px;height: 55px;margin: 10px auto;background: rgb(244,244,244);display: flex;align-items: center;}
.k_about_top span { font-size: 14px;color: #666666;margin: 0 15px 0 0px;}
.k_about_top span:nth-child(1) { margin-left: 30px;}
.k_about_top span:nth-child(3) { color: rgb(73,142,61);}
.k_about_con { width: 1280px;margin: 0 auto 30px;}
.k_about_nav { width: 170px;height: 710px;border: 1px solid rgb(232,232,232);float: left;}
.k_about_nav p { padding-left: 20px;border-bottom: 1px solid rgb(232,232,232);font-size: 18px;color: #666666;line-height: 55px;}
.k_about_nav span { font-size: 16px;color: #666666;display: inline-block; margin: 5px 0 0 20px;}
.k_about_nav li { font-size: 14px;color: #999999;line-height: 40px;margin-left: 20px;cursor: pointer;}
.k_about_nav li:hover{ text-decoration: underline;font-size: 16px;}
.k_about_cr { float: right;width: 1085px;border: 1px solid rgb(232,232,232);}
.k_about_cr>p:nth-child(1) { padding: 15px 20px;border-bottom: 1px solid rgb(232,232,232);font-size: 18px;color: rgb(37,37,37);}
.k_about_cr>p:nth-child(2) { text-align: center;font-size: 24px;color: #498E3D;margin-top: 40px;}
.k_about_class { display: flex;justify-content: center;height: 50px;align-items: center;}
.k_about_class span {font-size: 14px;color: #999999;margin:0 30px;}
.k_about_cr div,.k_about_cr img { padding: 0 25px;}
.k_about_cr img{ width: 1035px;}
.k_about_cr div { font-size: 14px;color: #666666;text-indent: 2em;line-height: 30px;margin: 20px 0;}
